//
//  ScanViewController.h
//  Demo54_QRCodeScan
//
//  Created by 李海龙 on 15/10/28.
//  Copyright © 2015年 北京千锋互联科技有限公司（大连）. All rights reserved.
//

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface ScanViewController : UIViewController<AVCaptureMetadataOutputObjectsDelegate>

@property ( strong , nonatomic ) AVCaptureDevice * device;
@property ( strong , nonatomic ) AVCaptureDeviceInput * input;
@property ( strong , nonatomic ) AVCaptureMetadataOutput * output;
@property ( strong , nonatomic ) AVCaptureSession * session;
@property ( strong , nonatomic ) AVCaptureVideoPreviewLayer * preview;



@end
